Vertical spiral wind turbine

ABSTRACT

The present invention teaches a vertical axis wind turbine including a base structure; a yaw system secured to the base structure; a rotatable turbine main body secured to the yaw system, a main shaft rotor including a plurality of vertical rotor blades secured to the main shaft rotor for the collection of wind energy located within the turbine main body, and an electrical control system to control the yaw system. The turbine main body includes a single spiral stator having a single vertically aligned opening. The yaw system rotates the rotatable turbine main body to align or not align the single vertically aligned opening with the wind.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. patentapplication Ser. No. 17/591,784, filed on Feb. 3, 2022, which is herebyincorporated by reference in its entirety.

FIELD OF THE INVENTION

The present invention relates to the field of wind turbines.Specifically, the present invention relates to the field of verticalwind turbines. More specifically, the present invention relates to avertical wind turbine having a spiral stator that more efficientlyfunnels wind into the rotor blades as compared to previous vertical windturbines.

BACKGROUND OF THE INVENTION

Conventional wind turbines utilize the energy of the wind to turnpropeller-like blades around a rotor. The rotor is connected to agenerator that spins to generate electricity. Wind turbines arepreferably mounted on a tall structure or are themselves quite tall soas to receive the full effects of the wind, yet not disturb theimmediate environment. Typically, wind turbines are positioned aboutthirty meters above the ground where they can take advantage of windsthat are not affected by ground effect obstructions. Wind turbinesgenerally consist of blades that spin with respect to two orientations,a vertically orientated axis, or a horizontally orientated axis.

Wind energy is a clean fuel source which will not pollute the air in thesame way as power plants that rely on the combustion of coal or naturalgas. Wind turbines that rotate about a horizontal axis are best suitedfor large unobstructed areas hence the creation of the wind farms.Vertically disposed wind turbines are well suited for congested areas,such as residential neighborhoods.

Wind power must compete with conventional generation sources on a costbasis. Depending on how energetic a wind site is, the wind farm may ormay not be cost competitive. Even though the cost of wind power hasdecreased dramatically in the past ten years, the technology stillrequires a higher initial investment than fossil-fueled generators asthey typically operate at ten percent efficiency.

Further, although wind power plants have negligible impact on theenvironment compared to other conventional power plants, there is someconcern over the noise produced by the rotor blades, aesthetic impacts,and sometimes birds that have been killed by flying into the rotors ofwind turbines that rotate about a horizontal axis.

The need for renewable energy sources is constantly increasing. A focuson improved wind turbines has steadily increased over time. The generalissue with wind turbines relates to the inefficient transfer of kineticenergy to mechanical energy for power generation. A conventional windturbine converts as little as ten percent of the possible kinetic energyinto mechanical energy for electricity generation due to the manyfactors that affect the efficiency of a conventional wind turbine.

As stated above, vertical axis wind turbines are known and typicallyhave a central vertical rotor section having a plurality of rotor vanesthat wind acts against to rotate the wind turbine, and wind from anydirection will impact the wind turbine in some manner. The orientationof a typical vertical axis wind turbine remains unchanged regardless ofwind direction, unlike a horizontal axis wind turbine which must beturned to face the wind. However, because wind from any direction canact on a typical vertical axis wind turbine, there is no way to protecta typical vertical axis wind turbine from strong wind that could damagethe turbine.

What is lacking in the art is a wind turbine having a verticallyorientated axis capable of improving upon the efficiencies necessary toconvert a higher amount of kinetic energy into mechanical energy whilealso being able to protect the wind turbine from damage when wind is toostrong. The present invention addresses these and other shortcomings byintroducing a vertical wind turbine power generator having a spiralstator that more efficiently funnels wind into the rotor blades ascompared to previous vertical wind turbines.

SUMMARY OF THE INVENTION

An embodiment of the present invention provides a vertical axis windturbine comprising: a base structure; a yaw system secured to said basestructure; a rotatable turbine main body secured to said yaw system,comprising a single spiral stator having a single vertically alignedopening; an electrical control system to control the yaw system; and amain shaft rotor including a plurality of vertical rotor blades securedto said main shaft rotor for the collection of wind energy locatedwithin the turbine main body; wherein said yaw system rotates saidrotatable turbine main body to align or not align the single verticallyaligned opening with the wind.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, further comprising a lowergearbox generator operably connected to the main shaft rotor to produceelectricity from the collected wind energy and wherein the lower gearboxgenerator is positioned within the base structure.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the base structure isselected from the group consisting of a tower and a building.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the yaw systemcomprises a yaw motor assembly, an internal slew gear, and an externalslew gear.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the electrical controlsystem comprises an electrical controller, a wind vane, and ananemometer; and wherein the wind vane and the anemometer are secured ona top portion of the electrical control system and collect wind data tosupply to the electrical controller so that the electrical controlsystem can direct the yaw system to rotate.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, further comprising a controlenclosure and a yaw system enclosure, and wherein the electrical controlsystem is housed within the control enclosure and the yaw system ishoused within the yaw system enclosure.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the yaw systemenclosure is secured to the base structure and the rotatable turbinemain body is secured to the yaw system enclosure.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the control enclosureis secured to the vertical axis wind turbine at a position above therotatable turbine main body.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, further comprising an upperrotor, an upper gearbox generator, an upper rotor support unit, and anupper gearbox enclosure unit.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the upper rotor supportunit is secured to a top portion of the rotatable turbine main body andhouses the upper rotor; wherein the upper gearbox enclosure unit issecured to a top portion of the upper rotor support and houses the uppergearbox generator; and wherein the control enclosure is secured to a topportion of the upper gearbox enclosure unit.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the upper rotorcontains a plurality of horizontal rotor blades for the collection ofthe wind energy collected by the plurality of vertical rotor blades ofthe main shaft rotor.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the upper gearboxgenerator produces a second source of electricity from the collectedwind energy.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein each vertical rotorblade of the plurality of vertical rotor blades has a helical surfaceconfiguration.

Another embodiment of the present invention provides a vertical axiswind turbine as in any embodiment above, wherein the plurality ofvertical rotor blades comprises between 2 and 10 vertical rotor bladesand wherein each said vertical rotor blade are circumferentially equallyspaced apart from the rotor main body in an annular array.

BRIEF DESCRIPTION OF THE DRAWINGS

The patent or application file contains at least one drawing executed incolor. Copies of this patent or patent application publication withcolor drawing(s) will be provided by the Office upon request and paymentof the necessary fee.

Embodiments of this invention will now be described by way of exampleonly in association with the accompanying drawings in which:

FIG. 1 is a perspective drawing of the vertical spiral wind turbine ofan embodiment the present invention;

FIG. 2 is a perspective drawing taken along line 2-2 of FIG. 1 showingthe internal components of the vertical spiral wind turbine of anembodiment of the present invention;

FIG. 3 is a perspective drawing showing in closer detail the internalcomponents housed in the base structure and yaw enclosure unit of thevertical spiral wind turbine of an embodiment of the present invention;

FIG. 4 is a perspective drawing showing in closer detail the internalcomponents housed in the turbine main body of the vertical spiral windturbine of an embodiment of the present invention;

FIG. 5 is a perspective drawing showing in closer detail the internalcomponents housed in the optional upper rotor support unit, optionalupper gearbox enclosure unit, and control enclosure of the verticalspiral wind turbine of an embodiment of the present invention;

FIG. 6 is a perspective drawing showing in closer detail therelationship between the spiral stator of the turbine main body and thehelical vertical rotor blades of the main shaft rotor;

FIG. 7 a is a cut plot of the wind velocity of a Computational FluidDynamics (CFD) flow simulation utilizing a single vertical spiral windturbine of the present invention;

FIG. 7 b is a cut plot of the wind velocity of a CFD flow simulationutilizing an embodiment of a single wind turbine based on the teachingsdisclosed in U.S. Pat. No. 9,022,721 to Zha et al.;

FIG. 8 a is a cut plot of the wind velocity of a CFD flow simulationutilizing a pair of vertical spiral wind turbines of the presentinvention in a side-by-side orientation;

FIG. 8 b is a cut plot of the wind velocity of a CFD flow simulationutilizing an embodiment of a pair of wind turbines based on theteachings of Zha in a side-by-side orientation;

FIG. 9 a is a cut plot of the wind velocity of a CFD flow simulationutilizing a pair of vertical spiral wind turbines of the presentinvention in a front-to-back orientation;

FIG. 9 b is a cut plot of the wind velocity of a CFD flow simulationutilizing an embodiment of a pair of wind turbines based on theteachings of Zha in a front-to-back orientation;

FIG. 10 a is a cut plot of the wind velocity of a CFD flow simulationutilizing a pair of vertical spiral wind turbines of the presentinvention at an angled orientation; and

FIG. 10 b is a cut plot of the wind velocity of a CFD flow simulationutilizing an embodiment of a pair of wind turbines based on theteachings of Zha at an angled orientation.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

Embodiments of the present invention are based, at least in part, uponthe discovery of a vertical wind turbine power generator that moreefficiently funnels wind into the rotor blades. In one or moreembodiments, the vertical wind turbine includes a spiral stator thatencases the rotor blades. Because of the spiral nature of the statorsurrounding and encasing the rotor blades, the wind is more efficientlyfunneled to the rotor blades which leads to a more efficient verticalwind turbine power generator as compared to previous iterations ofvertical wind turbine power generators that lacked a spiral stator.

An exemplary vertical wind turbine can be shown with reference to FIG. 1, which shows a vertical wind turbine 10 in accordance with anembodiment of the present invention. Turbine 10 includes a basestructure such as tower 12, a yaw system enclosure unit 14, a turbinemain body 16 including a single spiral stator 18, an optional upperrotor support unit 20, an optional upper gearbox enclosure unit 22, anda control enclosure 24. Tower 12 is used to secure the turbine 10 to theground or to the top of a structure while at the same time supportingthe rest of the components of turbine 10. Yaw system enclosure unit 14has the yaw system (to be discussed below) enclosed within, to keep theyaw system protected from the surrounding environment. The turbine mainbody 16 includes the spiral stator 18 which funnels wind into the rotorblades (to be discussed below). The spiral stator 18 of the turbine mainbody 16 includes a single vertical opening 26.

Optional upper rotor support unit 20, if present, houses an optionalupper rotor (to be discussed below) while providing a point ofconnection between the turbine main body 16 and the optional uppergearbox enclosure unit 22. Optional upper gearbox enclosure unit 22 isonly present if the optional upper rotor is present and houses theoptional upper gearbox (to be discussed below) while providing a pointof connection for the control enclosure 24 to the turbine 10. Controlenclosure 24 houses the electrical control system (to be discussedbelow).

FIG. 2 depicts the inner workings of the turbine 10 of FIG. 1 as shownalong line 2 of FIG. 1 . The inner workings of turbine 10 include alower gearbox generator 28 located within the tower 12 below the yawenclosure unit 14. The lower gearbox generator 28 works with the mainshaft rotor 30 to create electricity. The use and conversion of therotational energy created by the main shaft rotor 30 to createelectrical energy is believed to be within the scope of the prior art,and therefore will not be specifically described herein. While most ofthe main shaft rotor 30 is located within the confines of the turbinemain body 16, a portion of said main shaft rotor 30 is located withinthe yaw enclosure unit 14 and the end portion of the main shaft rotor 30connects to the lower gearbox generator 28 located within the confinesof the tower 12.

In one or more embodiments of the present invention, a width of thesingle vertical opening 26 of the spiral stator 18 is related to thediameter of the span of the rotor blades 32, in particular, the width ofthe single vertical opening 26 of the spiral stator 18 is equal to halfthe diameter of the span of the rotor blades 32. For example, if acircle is drawn around the outer edges of the rotor blades 32, and thediameter of that circle is 3 feet, then the width of the single verticalopening 26 of the spiral stator 18 would be 1.5 feet. This relationshiprelates to the pitch of the spiral stator 18 to allow for clearance ofthe rotor blades 32.

In one or more embodiments of the present invention, there would be wiremesh located over the single vertical opening 26 in order to keepanimals and debris from entering the turbine 10, while still allowingfor the wind to enter through the single vertical opening 26.

The main shaft rotor 30 additionally includes a plurality of helicalvertical rotor blades 32, the shape of these will be discussed in detailbelow. The inner workings of the turbine 10 also includes a yaw motorassembly 34, an internal slew gear 36, an external slew gear 38, a mainshaft bearing 40, and a main shaft bearing retainer 42. The innerworkings of the lower gearbox generator 28 working in conjunction withthe main shaft rotor 30 and the yaw motor assembly 34 are shown in moredetail in FIG. 3 and the inner workings of the turbine main body 16 areshown in more detail in FIG. 4 .

The yaw motor assembly 34 includes a plurality of drive motors 35 thatinclude smaller gears (not shown) that mesh with the internal slew gear36 and the external slew gear 38 to rotate the turbine main body 16 andeverything secured to the top of the turbine main body 10. The specificdetails of how the yaw system works, including the yaw motor assembly34, the internal slew gear 36, and the external slew gear 38, isbelieved to be within the scope of the prior art, and therefore will notbe described in more detail herein. The main shaft bearing 40 is locatedat a top end 44 of the main shaft rotor 30 within the confines of theturbine main body 16 and the main shaft bearing retainer 42 is locatedat a bottom end 46 of the main shaft rotor 30 within the confines of theturbine main body 16. The main shaft bearing 40 and the main shaftbearing retainer 42 support the rotation of the main shaft rotor 30.

As shown in more detail in FIG. 5 , the turbine 10 can also include anoptional upper rotor 48 and an optional upper gearbox generator 50 toprovide for an additional source of forming electricity. The optionalupper rotor 48 includes a plurality of horizontal rotor blades 52. Theoptional upper gearbox generator 50 works with the optional upper rotor48 to create an additional source of electricity coming from turbine 10in conjunction with the lower gearbox generator 28 working with the mainshaft rotor 30. As stated above with the lower gearbox generator 28, theuse and conversion of the rotational energy created by the optionalupper rotor 48 to create electrical energy is believed to be within thescope of the prior art, and therefore will not be specifically describedherein. The turbine 10 also includes an electrical control systemincluding an electrical controller 54 located within the controlenclosure 24. If the optional upper rotor 48 and optional upper gearboxgenerator 50 were not included in the construction of turbine 10, thenthe top rotor support 20 would be replaced with a mounting plate (notshown) and the control enclosure 24 would be mounted to the top of theturbine main body 16 using the mounting plate.

In one or more embodiments, if the optional upper gearbox generator 50is present, then there would be wire mesh and steel louvers over theslots in the upper gearbox generator 50 in order to keep animals anddebris from entering the turbine 10, while still allowing for the windto exit out of the upper gearbox generator 50 after it has entered theturbine 10 through the single vertical opening 26. In one or moreembodiments, if the optional upper gearbox generator 50 is not present,then the mounting plate (not shown) would then contain a wire meshcover.

The electrical controller 54 of the electrical control system controlsthe yaw motor assembly 34 to rotate the turbine main body 16. Theelectrical control system also includes a wind vane 56 and an anemometer58 mounted on the top of the controller enclosure 24 and used to collectwind data for the electrical controller 54. The wind vane 56 determinesthe direction from which the wind is blowing, then the electricalcontroller 54 uses that data to direct the yaw motor assembly 34 torotate the turbine 10 to line up the single vertical opening 26 suchthat the largest amount of wind can enter the turbine 10 and rotate thehelical vertical rotor blades 32. The anemometer 58 determines the speedof the wind, then the electrical controller 54 can use this data todetermine if the wind is blowing to slow such that electricity would notbe produced, or to fast such that damage to the turbine 10 may occur ifput in use. If the electrical controller 54 determines that the wind iseither too slow or too fast, then the electrical controller 54 directsthe yaw motor assembly 34 to rotate the turbine 10 such that thevertical opening 26 is not lined up in a position to allow for wind toenter the turbine 10.

In one or more embodiments of the present invention, the number ofhelical vertical rotor blades 32 will be between 2 and 10, but mostpreferably there will be between 3 and 5 helical vertical rotor blades32. In one or more embodiments of the present invention, each helicalvertical rotor blade 32 has at least a portion thereof which has acurved configuration in the “x” and “y” axis, and additionally has atleast a portion thereof which has a non-linear configuration in the “z”,also known as the longitudinal axis of the main shaft rotor 30. In oneor more embodiments, the non-linear portion of each helical verticalrotor blades 32 is in the form of a helix. In other words, each helicalvertical rotor blade 32 has a helical surface configuration. In one ormore embodiments of the present invention, each helical vertical rotorblades 32 is configured to be circumferentially equally spaced apartabout the main shaft rotor 30 in a circular array.

The helical design and equal spacing of each of the helical verticalrotor blades 32, along with the single vertical opening 26 of the spiralstator, allows for wind directed through the vertical opening 26 intothe interior of the turbine main body to simultaneously be directedagainst the top portion 33 a of a first helical vertical rotor blade 32a and a bottom portion 33 b of a second helical vertical rotor blade 32b. In this context, a first helical vertical rotor blade 32 is definedas being in a counterclockwise position as compared to the position ofthe second helical vertical rotor blade 32. This allows for the verticalwind turbine 10 to work more efficiently than vertical wind turbines ofthe prior art. This relationship is best shown in FIG. 6 .

The helical design and equal spacing of each of the helical verticalrotor blades 32 as discussed above, also allows for all wind directedthrough the vertical opening 26 against the helical vertical rotorblades 32 to exit the turbine main body 16 through the upper portion ofsaid turbine main body 16. Therefore, in the embodiments of the presentinvention wherein the optional upper rotor 48 and optional upper gearboxgenerator 50 are present, the wind utilized to first operate the lowergearbox generator 28 can be easily used again by the upper rotor 48 andupper gearbox generator 50 because the wind is directed in thatdirection. In embodiments when the optional upper rotor 48 and optionalupper gearbox generator 50, the helical design and equal spacing of eachhelical vertical rotor blade 32 also allows for the wind to easily leavethe turbine main body 16 through its upper portion, without affectingthe rotation of an of the helical vertical rotor blades 32.

In light of the foregoing, it should be appreciated that the presentinvention significantly advances the art by providing a spiral verticalwind turbine that is structurally and functionally improved in a numberof ways. While particular embodiments of the invention have beendisclosed in detail herein, it should be appreciated that the inventionis not limited thereto or thereby inasmuch as variations on theinvention herein will be readily appreciated by those of ordinary skillin the art. The scope of the invention shall be appreciated from theclaims that follow.

Examples

In order to highlight the benefits of the vertical spiral wind turbineof the present invention, a wind flow analysis comparison was done withthe vertical spiral wind turbine of the present invention and anembodiment of the vertical wind turbine as disclosed in U.S. Pat. No.9,022,721 to Zha et al. The wind flow analysis was done usingSolidWorks® flow simulation software. The wind turbine of Zha is similarto that of the present invention inasmuch as both wind turbines create avortex to accelerate and direct wind to drive the vertical rotor. Themain differences being that the vertical spiral wind turbine of thepresent invention utilizes a yaw system to rotate the wind turbine,specifically the positioning of the single vertical opening of thespiral stator into the wind to provide constant torque on all rotorblades and to deflect turbulence more easily. Whereas the wind turbineof Zha utilizes stationary intermittent stators which will catch windfrom all directions, without offering any protection from turbulence.

FIG. 7 a is a cut plot of the wind velocity of a Computational FluidDynamics (CFD) flow simulation utilizing a single vertical spiral windturbine of the present invention and FIG. 7 b is a cut plot of the windvelocity of a CFD flow simulation utilizing an embodiment of a singlewind turbine based on the teachings of Zha. FIG. 7 a shows how thesingle vertical spiral wind turbine of the present invention creates avortex that applies torque on each rotor blade without allowing oncomingwind to impede rotation of the rotor blades. This is due to being ableto control the positioning of the single vertical opening of the spiralstator through the use of the yaw system of the vertical spiral windturbine of the present invention. The wind will enter through the singlevertical opening and can only flow within the main body of the verticalspiral wind turbine of the present invention in one direction. FIG. 7 bshows how oncoming wind impeded rotation of the vertical rotor. Thevortex created by the stators overcomes this impediment, but someefficiency is lost. The wind simulation to the lower right shows theoncoming wind split into two directions around the turbine. The lowerportion is directed by the stators and forms the driving vortex but theupper portion hits against the driving vortex and creates a secondopposing low-speed vortex, which acts in opposition to the bladerotation.

The low-speed vortex is shown by the dark and light blue area (5-20ft/sec velocity) between the stator at the 10 o'clock and 12 o'clockpositions in FIG. 7 b . The streamlines show how the wind in this areaflows in opposition to the preferred direction. The torque produced bythe higher wind velocity of the yellow and green areas (24-44 ft/secvelocity) overcomes this opposition, but not without losing efficiency.The blue/green areas (20-40 ft/sec velocity) and streamlines in thespiral stator of FIG. 7 a show a more consistent vortex, flowing in onedirection with no counter flow of wind in the opposite direction. Eachvertical rotor has a consistent velocity of wind pushing it throughoutthe simulation.

FIG. 8 a is a cut plot of the wind velocity of a CFD flow simulationutilizing a pair of vertical spiral wind turbines of the presentinvention in a side-by-side orientation wherein the wind is flowing fromleft to right; FIG. 8 b is a cut plot of the wind velocity of a CFD flowsimulation utilizing an embodiment of a pair of wind turbines based onthe teachings of Zha in a side-by-side orientation wherein the wind isflowing from left to right; FIG. 9 a is a cut plot of the wind velocityof a CFD flow simulation utilizing a pair of vertical spiral windturbines of the present invention in a front-to-back orientation whereinthe wind is flowing from left to right; FIG. 9 b is a cut plot of thewind velocity of a CFD flow simulation utilizing an embodiment of a pairof wind turbines based on the teachings of Zha in a front-to-backorientation wherein the wind is flowing from left to right; FIG. 10 a isa cut plot of the wind velocity of a CFD flow simulation utilizing apair of vertical spiral wind turbines of the present invention at anangled orientation wherein the wind is flowing from left to right; andFIG. 10 b is a cut plot of the wind velocity of a CFD flow simulationutilizing an embodiment of a pair of wind turbines based on theteachings of Zha at an angled orientation wherein the wind is flowingfrom left to right.

What the plots of FIGS. 8 a-10 b show is that the vertical spiral windturbines of the present invention work more efficiently than prior artwind turbines, such as those of Zha, because regardless of the directionof the incoming wind, the yaw systems of the vertical spiral windturbines of the present invention will be able to properly place thepositioning of the single vertical opening of the spiral stator to mosteffectively and efficiently harness the power of the wind to createenergy. The vertical spiral wind turbines of the present inventionminimize turbulence coming off the spiral stator body while preventingturbulence from other objects from affecting the vertical rotor. Thenear cylindrical shape of the spiral vertical wind turbines of thepresent invention allows the wind not captured by the stator to flowaround the turbine more easily than prior art wind turbines, such asthose of Zha, thereby creating less turbulence. Having the rotorenclosed by the spiral stator allows the original air flow, opposingvortexes, and turbulence from other objects to not impede the rotor.

The light and dark blue areas in both FIGS. 8 a and 8 b show thereduction in wind velocity, from the original 26-33 ft/sec to 6-12ft/sec, after contacting the two turbine designs. The area of windturbulence, denoted by the light and dark blues areas (6-12 ft/sec) tothe right of the turbines, is significantly larger in FIG. 8 b than FIG.8 a . The streamlines show how the wind flows more freely around thespiral stator in FIG. 8 a , whereas the streamlines in FIG. 8 b in thedark blue regions show the formation of additional vortexes. The greaterarea of low velocity turbulence and vortexes would have a moresignificant negative affect on the efficiency of additional windturbines downwind from those of Zha in FIG. 8 b . Similar affects areshown in the differences between FIG. 9 a and FIG. 9 b and between FIGS.10 a and 10 b.

What is claimed is:
 1. A vertical axis wind turbine comprising: a basestructure; a yaw system secured to said base structure; a rotatableturbine main body secured to said yaw system, comprising a single spiralstator having a single vertically aligned opening; an electrical controlsystem to control the yaw system; and a main shaft rotor including aplurality of vertical rotor blades secured to said main shaft rotor forthe collection of wind energy located within the turbine main body;wherein said yaw system rotates said rotatable turbine main body toalign or not align the single vertically aligned opening with the wind.2. The vertical axis wind turbine of claim 1, further comprising a lowergearbox generator operably connected to the main shaft rotor to produceelectricity from the collected wind energy and wherein the lower gearboxgenerator is positioned within the base structure.
 3. The vertical axiswind turbine of claim 1, wherein the base structure is selected from thegroup consisting of a tower and a building.
 4. The vertical axis windturbine of claim 1, wherein the yaw system comprises a yaw motorassembly, an internal slew gear, and an external slew gear.
 5. Thevertical axis wind turbine of claim 1, wherein the electrical controlsystem comprises an electrical controller, a wind vane, and ananemometer; and wherein the wind vane and the anemometer are secured ona top portion of the electrical control system and collect wind data tosupply to the electrical controller so that the electrical controlsystem can direct the yaw system to rotate.
 6. The vertical axis windturbine of claim 1, further comprising a control enclosure and a yawsystem enclosure, and wherein the electrical control system is housedwithin the control enclosure and the yaw system is housed within the yawsystem enclosure.
 7. The vertical axis wind turbine of claim 6, whereinthe yaw system enclosure is secured to the base structure and therotatable turbine main body is secured to the yaw system enclosure. 8.The vertical axis wind turbine of claim 6, wherein the control enclosureis secured to the vertical axis wind turbine at a position above therotatable turbine main body.
 9. The vertical axis wind turbine of claim8, further comprising an upper rotor, an upper gearbox generator, anupper rotor support unit, and an upper gearbox enclosure unit.
 10. Thevertical axis wind turbine of claim 9, wherein the upper rotor supportunit is secured to a top portion of the rotatable turbine main body andhouses the upper rotor; wherein the upper gearbox enclosure unit issecured to a top portion of the upper rotor support and houses the uppergearbox generator; and wherein the control enclosure is secured to a topportion of the upper gearbox enclosure unit.
 11. The vertical axis windturbine of claim 10, wherein the upper rotor contains a plurality ofhorizontal rotor blades for the collection of the wind energy collectedby the plurality of vertical rotor blades of the main shaft rotor. 12.The vertical axis wind turbine of claim 11, wherein the upper gearboxgenerator produces a second source of electricity from the collectedwind energy.
 13. The vertical axis wind turbine of claim 1, wherein eachvertical rotor blade of the plurality of vertical rotor blades has ahelical surface configuration.
 14. The vertical axis wind turbine ofclaim 1, wherein the plurality of vertical rotor blades comprisesbetween 2 and 10 vertical rotor blades and wherein each said verticalrotor blade are circumferentially equally spaced apart from the rotormain body in an annular array.